摘要:
An apparatus and method for synchronizing a snapshot image are provided. A synchronization page is detected based on whether a page fault is generated in a snapshot page that is part of a snapshot image and based on attributes of a process that generated the page fault. The detected synchronization page is reflected in the snapshot image at a specific time.
摘要:
Provided are an apparatus and method for processing an interrupt. The apparatus includes a plurality of processing cores that are each configured to process an interrupt. The apparatus also includes an interrupt distributing unit configured to receive the interrupt, determine whether or not execution mode of each processing core is IRQ mode for exception processing or interrupt processing, and provide the received interrupt to a processing core that is not in IRQ mode.
摘要:
A data input/output control method and apparatus in an input/output subsystem are provided. The data input/output control method, in a system for inputting/outputting data to/from a disk sector according to an input/output command provided from a disk driver, includes: extracting the input/output commands for inputting/outputting the data to/from disk sector from the disk driver and generating a set of input/output commands; analyzing the load feature of the input/output command based on the set of input/output commands; determining whether the load of the input/output command corresponds to a multimedia application; and controlling the data which is input/output to/from the disk to correspond to the multimedia application according to the determination result.
摘要:
A memory apparatus and an operation of the memory apparatus which allow quick booting are provided. The memory apparatus includes a volatile memory, a non-volatile memory, and a memory control unit to control input/output of data stored in the volatile memory and the non-volatile memory. The memory control unit restores data, according to a control command input from outside of the memory apparatus, from the non-volatile memory to the volatile memory in an on-demand fashion during booting.
摘要:
An apparatus and method for synchronizing a snapshot image are provided. A synchronization page is detected based on whether a page fault is generated in a snapshot page that is part of a snapshot image and based on attributes of a process that generated the page fault. The detected synchronization page is reflected in the snapshot image at a specific time.
摘要:
Provided are a method and a system for processing an access to a disk block. The system receives a disk block access request from an OS domain, determines whether the OS domain is permitted to access a disk block with reference to a predetermined block table and processes disk block access of the OS domain according to the determination result. Accordingly, OS domains can share caches without having data copy through memory access control in a virtual machine monitor environment. Furthermore, a device domain controls access to a disk drive so that data corruption can be prevented.
摘要:
Provided is a method of controlling memory access. In a system including a first layer element executed in a privileged mode having a first priority of permission to access the entire region of a memory and second and third layer elements executed in an unprivileged mode having a second priority of permission to access a partial region of the memory, the method of controlling memory access determines whether the memory is accessible for each page that is an address space unit, based on which mode a layer element currently accessing the memory is executed in between the privileged mode and the unprivileged mode; and determines whether the memory is accessible based on which one of the first, second and third layer elements corresponds to a domain currently being attempted to be accessed from among a plurality of domains of the memory. Accordingly, a memory domain allocated to a guest operating system kernel is effectively protected from an application executed in the unprivileged mode in which the guest operating system kernel is executed.
摘要:
A data input/output control method and apparatus in an input/output subsystem are provided. The data input/output control method, in a system for inputting/outputting data to/from a disk sector according to an input/output command provided from a disk driver, includes: extracting the input/output commands for inputting/outputting the data to/from disk sector from the disk driver and generating a set of input/output commands; analyzing the load feature of the input/output command based on the set of input/output commands; determining whether the load of the input/output command corresponds to a multimedia application; and controlling the data which is input/output to/from the disk to correspond to the multimedia application according to the determination result.
摘要:
A virtual machine monitor and a scheduling method thereof is provided. The virtual machine monitor may operate at least two domains. The virtual machine monitor may include at least one run queue and a plurality of schedulers, at least two of the plurality of schedulers comprising different scheduling characteristics. The virtual machine monitor may insert a task received from the domain into the run queue and may select a scheduler for scheduling the task, which may be inserted into the run queue, from the schedulers, according to an event type.
摘要:
Provided are an apparatus and method for processing an interrupt. The apparatus includes a plurality of processing cores that are each configured to process an interrupt. The apparatus also includes an interrupt distributing unit configured to receive the interrupt, determine whether or not execution mode of each processing core is IRQ mode for exception processing or interrupt processing, and provide the received interrupt to a processing core that is not in IRQ mode.